Problem JSON by Conta

This library simplifies the implementation of the application/problem+json format described in RFC 7807 for JVM applications.

It includes:

A core API (conta-problem-json-api) with Problem, ThrowableProblem and the ProblemCode interface.
A Micronaut server integration (conta-problem-json-mn) that translates thrown problems into application/problem+json HTTP responses and handles validation errors automatically.
A Micronaut client integration (conta-problem-json-mn-client) that forwards problem responses received from upstream services as new ThrowableProblem instances.

Where to go next

Concepts — the JSON shape and the fields the library adds on top of RFC 7807.
Installation — wiring the library into a Micronaut build.
Usage — throwing a Problem from a controller.
Defining Problem Codes — defining application-specific problem codes.
Forwarding Upstream Problems — forwarding upstream problems through Micronaut clients.